Simon C Staehler¹, Domenico Giardini¹, Martin Knapmeyer², William T Pike³, Mark P Panning⁴, John F Clinton¹, Maren Böse¹, Savas Ceylan¹, Martin van Driel⁵, Anna C Horleston⁶, Taichi Kawamura⁷, Sharon Kedar⁴, Amir Khan¹, Guenolé Orhand-Mainsant⁸, John-Robert Scholz⁹, Philippe Henri Lognonné¹⁰ and William Bruce Banerdt⁴, (1)ETH Zurich, Zurich, Switzerland, (2)German Aerospace Center DLR Berlin, Berlin, Germany, (3)Imperial College London, London, SW7, United Kingdom, (4)Jet Propulsion Laboratory, Pasadena, CA, United States, (5)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland, (6)University of Bristol, Bristol, United Kingdom, (7)Université de Paris, Institut de physique du globe de Paris, Paris, France, (8)Institut Supérieur de l'Aéronautique et de l'Espace, Toulouse Cedex 04, France, (9)Max Planck Institute for Solar System Research, Göttingen, Germany, (10)Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, France